Home / 72,541.43-100,102.69-40,274.18

Finding the Fourth Proportional to 72,541.43, 100,102.69 and 40,274.18

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Solution

The fourth proportional to 72,541.43, 100,102.69 and 40,274.18 is: 55,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,541.43 : 100,102.69 = 40,274.18 : x
  2. Step 2: Convert to fraction form
    72,541.43/100,102.69 = 40,274.18/x
  3. Step 3: Cross multiply
    72,541.43x = 100,102.69 × 40,274.18
  4. Step 4: Simplify right side
    72,541.43x = 4,031,553,755.54
  5. Step 5: Solve for x
    x = 4,031,553,755.54/72,541.43
  6. Step 6: Final answer
    x = 55,575.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.